자료유형 | 학위논문 |
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서명/저자사항 | Electronic Transport in Functionalized Graphene: From Strong Chemisorption to Weakly Bonded Adsorbates. |
개인저자 | Liang, Sangzi. |
단체저자명 | The Pennsylvania State University. Physics. |
발행사항 | [S.l.]: The Pennsylvania State University., 2016. |
발행사항 | Ann Arbor: ProQuest Dissertations & Theses, 2016. |
형태사항 | 100 p. |
기본자료 저록 | Dissertation Abstracts International 79-12B(E). Dissertation Abstract International |
ISBN | 9780438135284 |
학위논문주기 | Thesis (Ph.D.)--The Pennsylvania State University, 2016. |
일반주기 |
Source: Dissertation Abstracts International, Volume: 79-12(E), Section: B.
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요약 | Graphene is a new two-dimensional material that has many interesting properties due to its low energy excitations which behave as Dirac fermions. To unlock its application potential, it is necessary to study the electronic transport in graphene |
요약 | The localization properties of graphene adatoms is studied in chapter 2. Green's function perturbation theory is applied on a general tight-binding model of graphene with adatoms and the energy and the decay of the wavefunction of the impurity s |
요약 | The data of graphene and carbon nanotube gas sensing experiments is analyzed in chapter 3 with the kinetic Langmuir model adapted to include adsorption sites from which the molecule does not desorb. The model reproduces the available experimenta |
요약 | In chapter 4 we explore an alternative mechanism for the conductance change in graphene gas sensing. Charged functional groups and dipolar molecules on the surface of graphene may counteract the effect of charged impurities on the substrate. Thi |
요약 | In chapter 5 we explore another possible explanation for this phenomena assuming that NO chemisorbs to vacancies and eventually dissociates. We found that adsorption of NO in graphene vacancies is favorable by 5.3 eV. In order to evaluate the co |
일반주제명 | Condensed matter physics. Physics. |
언어 | 영어 |
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